William mineath



NW. w 319%. M08518 W. MINRATH MEANS FOR GENERATING COLORED LIGHT FOR ILLUMINATION PURPOSES Filed Oct. 15 1925 Patented Nov. 30, 1926.

PATENT OFFICE.

WILLIAM MINRATH, OF NEW YORK, N. Y.

MEANS FOR GENERATING COLORED LIGHT FOB ILLUMINATION PURPOSES.

Application flied October 15, 1828. Serial No. 668,577.

My invention relates to the art of illumination, and the object of my invention is to provide means whereby colored light may be generated for advertising purposes or for use on gala occasions. It is also of advantage for use in certain scientific research work. A

In carrying out my object I may use a lamp construction as hereinafter set forth, but for many uses I prefer to provide a candle made with the materials combined in such manner as to provide the desired color when burned.

Referring to the drawings which forma part of their specifications:

Figure 1 indicates a candle shown in vertical section.

Figure 2 is a plan view of said candle.

Figure 3 is an illustrational view showing a wick formed in helical shape to provide a greater amount of the chemical used to generate the color in a candle of a given length.

Figure 4 illustrates the wick which may be made and sold as a separate article of manufacture.

Figure 5 is a vertical sectional View of a lamp illustrating the use of the wick when used with oil, etc.

' A, indicates a wick made of cotton or other suitable material such as usually found in ordinary candles.

B, indicates a coating or envelope of wax or parafiine.

C, indicates a body portion of combustible material such as wax or parafiine.

In provid ng the wicks I use certain chem.- icals depending upon the color to be generatedwhen the candle is burned.

To generate a red color I prefer to use strontium chlorate and for a green color barium chlorate, which I have found to be much superior to other salts which I have tried. Both of these salts are'soluble in water and I therefore make a saturated solution of the desired salt and then soak the wicking therein and allow it to dry thus causing the crystals of't-he salt to form in the WICK.

I also prepare some wax or p'arafiine and melt the same and then add the salt thereto to provide a paste rich in the chemical and whilestill warm I cover the wicking with a coating of this paste. I then cut'the wicking into the lengths corresponding to the length of the candle to be made, or slightly longer, and pack them in boxes for sale.

To make the complete candles, I take the wicks as above finished, and mold the body portion of wax or paraflin around each wicl: in the usual manner of making wax Candles.

In Figure 3 I have shown the wick made in the form of a helix to provide a greater amount of the chemical, thereby generating a more intense or deeper color in the flame of the candle.

In Figure 5 I illustrate a simple lamp construction in which E indicates the receptacle for oil, D the oil therein, and F a holder to support the wick A, the cup F serving to hold any overflow or dripping of oil.

It is obvious that a mixture of barium and strontium could be used instead of either of said salts separately to providev a colored light and that other such salts or suitable compounds may be used to provide light of many different colors and shades of color.

Having thus dsecribed my invention I claim as new 1. An article of manufacture comprisin a cellulose wick impregnated with :1 ch orate salt solution crystallizable upon drying and when ignited producing a colored flame.

2. An article of manufacture comprising a cellulose lamp wick impregnated with a chlorate salt solution crystallizable upon drying and forming a coating on the wick to produce a colored flame when ignited.

A color en'nttlng candle comprising an mfiammable body, a wick embedded 1n sa1d body, said wick being impregnated with a chlorate salt solution crystallizable upon dryinlg.

4. color emitting candle comprising an inflammable body, a helical formedwick in said body, said Wick being impregnated with a chlorate salt solution crystallizable' interiorily and exteriorly of said wick upon drying.

5. The process of making a wick to provide colored light consisting in dipping'a wick into a chlorate salt solution, then drying the wick to cause said salt to crystallize in the wick, then coating said wick with combustible material.

6. The process of making a wick to provide a colored light which consists in dipping a wick into a chlorate salt solution, drying the wick to cause the salt to crystal- 6 lize and then coatin the wick with a combustible paste containing a quantity of the said salt solution.

7. The process of making a wick to provide a colored light which consists in clip- 10 ping a wick into a chlorate salt solution reoame then coating the said wick with a combusti ble paste containing a quantity of the said solution. I In testimony whereof, WILLIAM MINRATII has si ned his name tothis specification this secon day of October, 1923. 4

WHJL' MINRATH. 

